Sadly your firmware is not compatable with the currents tools out.
There is a whole bunch of us waiting for wiRe to release some new tools for the 9.x.xx firmware series in this thread *the link below*
I personally am waiting for a way to modify/theme my firmware. I emailed wiRe and he told me that he is working on a way we can theme the new 9.x.xx series.
So be sure to keep checking back, because wiRe is planning on having new news about the subject soon.